Results 31 to 40 of about 432,772 (201)

Cross-Coupling Hydrogen Evolution Reactions [PDF]

Acta Chimica Sinica, 2020
During the past decade, transition metal-catalyzed dehydrogenative cross-couplings have emerged as an attractive strategy in synthetic chemistry due to its high step- and atom-economy as well as the less functionalized coupling partners. However, such reactions have to always use stoichiometric amount of sacrificial oxidants such as peroxides, high ...
Kui Dong, Qiang Liu, Li-Zhu Wu
openaire   +1 more source

Carbon-based electrocatalysts for hydrogen evolution reaction

Energy Conversion and Management: X
In the pursuit of clean and sustainable hydrogen energy production, water splitting has emerged as a promising method. However, the cost and scarcity of Pt-group metals as effective electrocatalysts hydrogen evolution reaction (HER) poses challenges for ...
Khalid Ahmed, Summaiya Hameed, Kumar Patchigolla, Nashwan Dawood, Zafar Khan Ghouri   +4 more
doaj   +1 more source

Balancing hydrogen adsorption/desorption by orbital modulation for efficient hydrogen evolution catalysis

Nature Communications, 2019
Hydrogen adsorption/desorption behavior plays a key role in hydrogen evolution reaction catalysis. Here, the authors demonstrate the rational balancing of hydrogen adsorption/desorption by orbital modulation for significantly enhanced hydrogen evolution ...
Feng Li, Gao-Feng Han, Hyuk-Jun Noh, Jong-Pil Jeon, Ishfaq Ahmad, Shanshan Chen, Changduk Yang, Yunfei Bu, Zhengping Fu, Yalin Lu, Jong-Beom Baek   +10 more
doaj   +1 more source

Secondary Impact of Manganese on the Catalytic Properties of Nitrogen-Doped Graphene in the Hydrogen Evolution Reaction [PDF]

, 2017
Catalysts play a key role in hydrogen production as green energy carriers. We show herein for the first time that manganese impurities in graphene can improve the catalytic activity of synthesized N‐doped graphene (NG) for the hydrogen evolution reaction
Arrigo, Bayati, Boucher, Cummins, Dong, Gong, Igashira-Kamiyama, Ito, Jiang, Jiao, Kurihara, Li, Liu, Lu, Morozan, Scardamaglia, Schmiersa, Seh, Shi, Tan, Tang, Tuinstra, Xiao, Xiao, Xing, Zheng, Zhu, Zou, Zou   +28 more
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A Perspective on Low-Temperature Water Electrolysis – Challenges in Alkaline and Acidic Technology

International Journal of Electrochemical Science, 2018
Water electrolysis is considered as an important technology for an increased renewable energy penetration. This perspective on low-temperature water electrolysis joins the dots between the interdisciplinary fields of fundamental science describing ...
Maximilian Schalenbach, Aleksandar R. Zeradjanin, Olga Kasian, Serhiy Cherevko, Karl J.J. Mayrhofer   +4 more
doaj   +1 more source

Mechanisms of hydrogen evolution on chromium [PDF]

Mining and Metallurgy Engineering Bor, 2015
In this work, the mechanisms of hydrogen evolution on the metal chromium in a solution of 0.1 M Na2SO4 + H2SO4, pH 1 to pH 7 were analysed. In the pH < 3 range, hydrogen is evolved according to three different mechanisms, depending on the experimental ...
Jegdić Bore, Bobić Biljana, Jegdić Aleksandar, Stevanović Maja   +3 more
doaj   +1 more source

Minimal‐power control of hydrogen evolution reactions

Optimal Control Applications and Methods, 2009
AbstractAn integral approach to solve finite‐horizon optimal control problems posed by set‐point changes in electrochemical hydrogen reactions is developed. The methodology extends to nonlinear problems with regular, convex Hamiltonians that cannot be explicitly minimized, i.e.
Costanza, Vicente, Rivadeneira Paz, Pablo Santiago   +1 more
openaire   +3 more sources

Electrolytic preparation and characterization of Ni-Fe-Mo alloys: Cathode materials for alkaline water electrolysis [PDF]

, 1999
Ni-Fe-Mo alloys have been electroplated by using suitable bath solution and plating conditions. SEM and XRD analysis showed that the deposited alloys are partially amorphous. Polarization studies indicated a dependence of the hydrogen evolution mechanism
Mayanna, S.M, Ramesh, L., Sheshadri, B.S.   +2 more
core   +1 more source

Study on Hydrogen Evolution Reaction at a Graphite Electrode in the All-Vanadium Redox Flow Battery

International Journal of Electrochemical Science, 2012
The hydrogen evolution reaction in the negative half-cell of a vanadium redox battery is studied at a graphite electrode. Hydrogen evolution behavior is included by potentiostatic method.
Fuyu Chen, Jianguo Liu, Hui Chen, Chuanwei Yan   +3 more
doaj   +1 more source

Directed Growth of Hydrogen Lines on Graphene: High Throughput Simulations Powered by Evolutionary Algorithm [PDF]

, 2018
We set up an evolutionary algorithm combined with density functional tight-binding (DFTB) calculations to investigate hydrogen adsorption on flat graphene and graphene monolayers curved over substrate steps.
Brandbyge, M., Falkenberg, J. T., Ozbal, G., Senger, R. T., Sevincli, H.   +4 more
core   +2 more sources